Typical Operating Characteristics
Dropout Voltage vs. Load Current
700
CIN = 1uF
600 COUT = 1uF
TJ = 125°C
500
TJ = 25°C
400
300
TJ = −40°C
200
100
0
0
100 200 300 400 500 600
Load Current (mA)
Region of Stable COUT ESR vs. Load Current
100.00
COUT = 1uF to 4.7uF
10.00
Instable
1.00
Stable
0.10
0.01
Instable
0.00
0
100 200 300 400 500 600
Load Current (mA)
Current Limit vs. Input voltage
900
850
800
750 VIN = 5V
CIN = 1uF
COUT = 1uF
RL = 0.5Ω
700
3
3.5
RT9166-33xX
4
4.5
5
5.5
Input voltage (V)
DS9166/A-19 April 2008
RT9166/A
Power Supply Rejection Ratio
0
VIN = 5V
CIN = 1uF
-10 COUT = 1uF
-20
-30
-40 100mA
-50
1mA
-60
10
100
1k
10k
100k 1M
Frequency (Hz)
VIN = 5V
CIN = 1uF
400
200
0
-200
-400
Output Noise
ILOAD = 100mA
COUT = 1uF
f = 10Hz to 100KHz
Time (1ms/DIV)
Current Limit vs. Input voltage
900
850
800
750 VIN = 5V
CIN = 1uF
COUT = 1uF
RL = 0.5Ω
700
3
3.5
RT9166-33xVL
4
4.5
5
5.5
Input voltage (V)
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5